270 



PESTS OF ORCHARD AND SMALL FRUITS 



They have a habit of travehng back and forth up and down the trunk 

 and hmbs of a tree, and sometimes collect in masses. 



On orchard trees they are readily controlled by poison sprays, 

 preferably arsenate of lead. 



Fig. 380. — The Yellow-necked Caterpillar. Original. 



The Yellow-necked Caterpillar {Daiana ministra Dru.> 



In iate summer 

 yellow and black 

 striped caterpillars 

 feed on orchard 

 foliage, working in 

 colonies and strip- 

 ping a single limb 

 as they go. The 

 mature caterpil- 

 lar is nearly two 

 inches long. Just back of the head is an orange ridge. When dis- 

 turbed, the caterpillars raise both head and tail into the air, holding 

 fast by the middle. 



The eggs are laid on 

 the leaves in midsum- 

 mer, by a brownish 

 moth. Winter is passed 

 as a pupa in the soil. 

 There is one generation 

 annually. 



Removal of the colo- 

 nies of caterpillars by 

 cutting off the twig or 

 limb is the usual pro- 

 cedure. They may easily 



be killed by spraying with Paris green or arsenate of lead. Where 

 orchards are given a spraying with arsenicals the first of August this 

 pest will not be in evidence. 



Fig. 381. 



■Adult of the Yellow-necked Cater- 

 pillar. Original. 



